GROUP: hydromorphic crops (ri)
DEFINITION: rooted emergent hydromorphic crops, mostly rice (Oryza sativa).

Table of Contents

Classification

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  1. Object
    1. rice paddy = land specially prepared for rice (Oryza sativa) production, including dikes for water management, but sometimes with other crops than rice all year.
    2. generic rooted emergent aquatic crops =Examples: Jiaobai (Zizania aquatica), Lotus (Nelumbo nucifera), sometimes Taro (Colocasia esculenta), Old World Arrowhead (Pinyin = Cigu; Sagittaria sagittifolia).
  2. Modifier 1 (management system)
    1. rice paddy
      1. not used for transplants every year
      2. used for transplants every year = transplanting area used every year: this area is usually fallow in winter, and submerged earlier in the year.
      3. submerged and fallow in winter = “winter paddy”: paddy dammed and used to accumulate water for growing season; fallow and submerged during winter.

Key

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  1. rice paddy
    1. not used for transplants every year = ri01
    2. used for transplants every year = ri02
    3. submerged and fallow in winter = ri03
  2. generic rooted emergent aquatic crops = ri04

Dominance Rules

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  1. IF area of rice paddy TYPES within feature are nearly equal THEN = ri01
  2. IF same plot is BOTH used for transplants every year (ri02) AND submerged and fallow in winter (ri03), THEN choose = ri03

Factors

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Leaf Type: mixed
Leaf Time: annual
Tree Cover: <<10%
Vegetation Cover: >90%
Height: <3m
IGBP_DIS:
Identification:
L1 Minimum: >5m
L2 Minimum: >5m

Compatible Classes

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FORM:

Anthropogenic Terraced Slope Floodplain Foot Slope Bench Plateau Summit Sloping Steep Slope Marsh Flowing Marsh Shallow Stream Seasonal Stream Seasonal River Water Margin Canal Margin River Margin

USE:

Paddy

COVER:

Annual Mixed

TYPE:

Mapped Ecotopes

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BPPAri01 BPPAri03 FPPAri01 FPPAri04 FSPAri01 FSPAri02 FSPAri03 FSPAri04 TSPAri01  

Citation for AEM: Ellis E. C., H. Wang, H. Xiao, K. Peng, X. P. Liu, S. C. Li, H. Ouyang, X. Cheng, and L. Z. Yang. 2006. Measuring long-term ecological changes in densely populated landscapes using current and historical high resolution imagery. Remote Sensing of Environment 100(4):457-473.