ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

基于像元尺度耕地質(zhì)量局部空間自相關(guān)的基本農(nóng)田劃定
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家自然科學基金項目(41071290)和國家社會科學基金項目(14BGL156)


Delineation of Basic Farmland Based on Local Spatial Autocorrelation Analysis of Cultivated Land Quality in Pixel Scale
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統(tǒng)計
  • |
  • 參考文獻
  • |
  • 相似文獻
  • |
  • 引證文獻
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    劃定永久基本農(nóng)田保護區(qū)是我國農(nóng)業(yè)可持續(xù)發(fā)展的戰(zhàn)略要求,,耕地質(zhì)量是保護區(qū)位置選擇的重要依據(jù),。以湖北省嘉魚縣為例,,引入植被指數(shù)信息,完善耕地質(zhì)量綜合評價指標體系,,通過網(wǎng)絡(luò)層次分析法確定指標權(quán)重,結(jié)合局部空間自相關(guān)分析結(jié)果,,分別對基于耕地質(zhì)量與莫蘭指數(shù)的基本農(nóng)田逐像元補劃結(jié)果進行了分析,。研究結(jié)果表明,嘉魚縣耕地綜合質(zhì)量在空間上表現(xiàn)出較強的相關(guān)性,,全域和耕地范圍的局部自相關(guān)系數(shù)分別為0.8645和0.9916,;基于耕地質(zhì)量和莫蘭指數(shù)的劃定結(jié)果在空間上保持高度的一致性,兩種方法均優(yōu)先將空間上呈HH型聚集的99.97%的像元劃入了基本農(nóng)田保護區(qū),;兩種方法互為補充,,可以為最終決策提供參考。

    Abstract:

    The designation of basic farmland reserves is a strategic requirement for the sustainable development of agriculture of the Chinese government, and it is also a foundation for ensuring national food security and social stability. The quality of cultivated land is an important evidence for the site of protected area, from the perspective of crops themselves, the quality evaluation system should not only consider external factors, but also take internal factors of crops into account. The absorption and utilization results of external conditions of crops in time series were regarded as innovative indicators to break through the traditional evaluation model, therefore, taking Jiayu County, Hubei Province as an example, vegetation index information was introduced to improve the comprehensive quality evaluation system of cultivated land, and then the weight of each evaluation index was calculated by means of analytic network process (ANP). Then local spatial autocorrelation analysis was used, and comparative analysis of the results between the quality of cultivated land and the Moran’s index in pixel scale was processed. The result showed that the overall quality of cultivated land in Jiayu County was good and it showed a strong positive correlation in spatial distribution, the local indicators of spatial association (LISA) of the whole county and cultivated land were 0.8645 and 0.9916, respectively. Besides, both results of demarcation based on pixel gave priority to the HH type (highhigh), 99.97% of pixels were classified as basic farmland. Finally, the former was superior in terms of comprehensive quality, while the latter had good effect on narrow area of the hilly region. The comprehensive quality evaluation system of cultivated land was improved by introducing the information of crops themselves in the pixel scale, which provided a useful reference for the fine delineation of basic farmland.

    參考文獻
    相似文獻
    引證文獻
引用本文

劉彥文,劉成武,何宗宜,周霞.基于像元尺度耕地質(zhì)量局部空間自相關(guān)的基本農(nóng)田劃定[J].農(nóng)業(yè)機械學報,2019,50(5):260-268,319. LIU Yanwen, LIU Chengwu, HE Zongyi, ZHOU Xia. Delineation of Basic Farmland Based on Local Spatial Autocorrelation Analysis of Cultivated Land Quality in Pixel Scale[J]. Transactions of the Chinese Society for Agricultural Machinery,2019,50(5):260-268,319.

復制
分享
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2018-11-07
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2019-05-10
  • 出版日期: 2019-05-10
文章二維碼